Split large files into smaller chunks. Perfect for email attachments or storage limits. 100% client-side.
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Drop your file here or click to browse
Maximum file size: 500MB
File name:-
Size:-
Type:-
Generated Parts
Privacy & Security: This tool is for personal use. Your files are not uploaded to any server. All processing happens client-side in your browser.
Disclaimer: This tool is provided as-is. Please keep all parts together to reconstruct the original file using our File Merger tool.
What the File Splitter Does and Why It Matters
The File Splitter breaks a large file into smaller numbered chunks in your browser, so an oversized file fits within email attachment limits, upload caps, or storage constraints. The original is untouched; you download a set of parts that can later be rejoined.
This matters because many services still cap individual file sizes, and a single big archive or video may be impossible to send or store as one piece. Splitting locally avoids uploading a sensitive file to some online splitter just to work around a size limit.
How to Use File Splitter
Select the large file you want to split.
Choose the chunk size (for example a maximum size per part).
Run the split to generate numbered pieces.
Download each part; keep them together so they can be rejoined later.
Use the companion File Merger to reassemble the original.
Supported Inputs and Limitations
What you provide
A single file from your device
A chosen maximum size per chunk
What you get
A set of numbered file parts
Pieces small enough for your attachment, upload, or storage limit
Known limitations
The parts are not independently usable — you need all of them, in order, to rebuild the original.
Rejoining requires a compatible merger such as the NovaTools File Merger.
Splitting a very large file depends on your device memory.
Privacy and Security
Splitting is performed entirely in your browser. Your file is processed on your device and is never uploaded to NovaTools or any external service, which is exactly why it is safer than online splitters for private data.
Frequently Asked Questions
How do I put the file back together?
Use the File Merger tool and provide all the numbered parts. It rejoins them in order to reconstruct the original file.
Will any single part work on its own?
No. Each part is a fragment; you need the complete set in the correct order to restore the original.
Is my file uploaded to split it?
No. The split happens locally and the file never leaves your browser.
This free online tool helps you split large files into smaller, more manageable chunks. It's useful when you need to email large attachments, upload to services with size limits, or store files across multiple devices.
How to Use
Select your file by dropping it onto the upload area or clicking to browse.
Choose your split method: by part size (e.g., 10MB each) or by number of parts.
Click Split File to divide your file into chunks.
Download each part individually. All parts are needed to reconstruct the original file.
Frequently Asked Questions
Is my file data kept private?
Absolutely. All processing happens entirely in your browser. No file data is sent to any server, logged, or stored anywhere. Your files remain completely private.
What's the file size limit?
The tool supports files up to 500MB. This limit ensures smooth performance in your browser. For larger files, consider using dedicated file splitting software.
How do I merge the parts back together?
Use our File Merger tool to combine the split parts back into the original file. Make sure to use all parts in the correct order.
Can I split any type of file?
Yes, this tool works with any file type including documents, images, videos, archives, and more. The split is done at the binary level, preserving file integrity.
Are the split parts numbered?
Yes, each part is automatically named with a sequence number (e.g., filename.part001, filename.part002) so you can easily identify and reorder them if needed.
Recommended next reading
Use these practical guides to understand when this tool is the right choice, what to check before exporting, and which workflow usually comes next.
